Paul's ekklesia as a civic assembly

How did Paul's term ekklesia formulate the Christian self-understanding? Young-Ho Park finds the answer in its strong civic connotation in the politico-cultural world of the Greek East under the Roman Empire. By addressing his local Gentile congregation as ekklesia in his letters, Paul effectively created a symbolic universe in which the Christ-worshippers saw themselves as the honorable citizens who represented the city before God. (Publisher).